Injector.



No. 880,984. PATENTED MAR. 3, 1908. J. M. GAILBY.

INJECTOR.

APPLICATION FILED JUNE 28, 1907.

2 SHEETS-SHEET 1.

five/afar 202%: e136 e s I UNITED STATES PATENT onnron.

INJECTOR.

Application filed June 28,

T 0 all whom it may concern:

Be it known that I, JAMES M. GAILEY, a citizen of the United States,residing at Mo- Keesport, in the county of Allegheny and State ofPennsylvania, have invented new and useful Improvements in Injectors, ofwhich the following is a specification.

This invention relates to injectors.

There is a known injector with which I am familiar that is provided withwhat is termed an inlet valve. When an injector is in operation water ispassing therethrough and there is always more or less sediment or dirtin such water. This foreign matter frequently clogs the valve andsometimes its closing spring so that the former will not seat. When sucha condition as this ensues the injector becomes non-lifting and has tobe taken apart and. the valve cleaned. By virtue of my invention Ieliminate wholly this disadvantage. I provide an inlet valve and aspring for closing the same which requires only to be under rather lighttension and, in addition to this, also provide means for bodily shiftingthe valve, by virtue of which the sediment, dirt, and the likewhich-adhere to the valve can be removed.

In the drawings accompanying and formin part of this specification Ishow in detail one form of embodiment of the invention which, to enablethose skilled in the art to practice the same, will be set forth atlength in the following description, while the novelty of the inventionwill be included in the claims succeeding said description.

Referring to said drawings: Figure 1 is a vertical section of aninjector involving my invention. Fig. 2 is a similar view of the saidinlet valve and certain adjacent cooperating devices; Fig. 3 is atransverse section of the parts shown in Fig. 2, both said Figs. 2 and 3being upon an enlarged scale.

Like characters refer to like parts throughout the several figures ofthe drawings.

In Fig. 1 I have shown certain parts of an injector and with the same myimprove ment. I will briefly allude to the old parts and will thereafterdescribe the improvement in detail and, for this purpose, reference maybe had initially to Fig. 1. The various operative parts of the injectorare housed within a casing such as 1. Said casing has a branch as 2 forthe admission of steam, a water-supply branch as 8, a wastesupply branchas 4, and a branch as 5 through Specification of Letters Patent.

Patented March 3, 1908.

1907. Serial No. 381,357.

Y which the boiler (not shown) is supplied with its water. Thesteam-nozzle is denoted by 6 and is controlled by a valve as 7. In thecasing 1 is a chamber as 8 which has communication with the water-supplybranch 3. The parts hereinbefore described are I believe old, for whichpurpose they have been but briefly alluded to. Communication between thechamber or compartment 8 and the watersupply branch 3 is controlled by avalve as 9, said valve being in the present case of disk type andclosing against a seat at the inner otherwise suitably fitted in thepartition or wall 11. In addition to the valve 9 there is a second orcut-off valve 12 which I believe is common in this class of devices andwhich is substantially of cylindrical form. The stem of said valve 12 isdenoted by 13 and it has attached suitably to its outer end an arm as 14by which the valve 12 can be turned to control the supply of water tothe injector. The inner end of the valve 12 fits against and turns uponthe sleeve or collar 1.0 through which the stem 15 of the inlet valve 9eX- tends, said stem 15 being guided by a spider as 16 in the sleeve orcollar 10. The stem 15 as 17 bearing at its forward or inner end againstthe spider 16 and at its outer end against a shoulder or collar as 18 onsaid stem 15. The collar 18 may be adjustable to regulate the tension ofthe spring 17. This tension is comparatively light, although it issufficient to normally hold the valve 9 against its seat at the forwardor inner end of the sleeve 10.

The water valve stem 13 is hollow or tubular, and through said stem therod 19 is shown as extending, a lever as 20 being represented aspivotally connected between its ends to the outer end of said rod 19.One end of the said lever is shown as pivotally connected to a link as21 likewise jointed at its opposite end to the arm 14 which, it will beunderstood, is turned to effect the operation of the main orwater-controlling valve 12. Owing to the connection between the twoactuating devices 14 and 20 the latter will turn with the former so thatthe free end of the lever or arm 20 is always in position for operationby the individual using the main arm or lever 14. The rod 19 extendsentirely through the tubular or hollow stem 13 and its inner end isshown as revolubly and loosely connected with the stem 15. I

end of the sleeve or collar 10 threaded or is shown as encircled by acoiled push-spring can obtain this result in the present case by thefollowing construction: The inner end of said rod 19 is shown as havinga hook as 22 inclosed by the main valve 12, one branch or 5 thebill-portion of the hook being forked as at 23. Said fork 23 straddlesthe stem 15 and is situated between the shoulder or collar 24 and theshoulder or collar 25. By virtue of this construction it will beapparent that the lever or arm 14 can be manipulated to effect theoperation of the main or watercontrolling valve 12 without affecting theinlet valve 9. The inlet valve 9 is held normally closed by the spring17. When said 15 inlet or auxiliary valve 9 is opened the spring 17 isput under additional compression so that, when the valve 9 is releasedfrom open ing pressure, the spring 17 can close the same against itsseat on the sleeve 10. Should,

20 however, the valve 9 fail to seat or close from the causeshereinbefore mentioned, it can be thrust open by the operation of thelever 20 acting through the rod 19 and cooperating devices, so as topermit the water to dislodge any substances which may adhere to thevalve or spring. I might explain that, when the rod 19 is thrust forwardby swinging the L hand lever 20, the inner or bifurcated portion of thehook 22 acts against the collar or shoulder 25 to move the valve towardsits open position, whereby the results set forth can be accomplished.When the difliculty has been removed the lever 20 is returned to itsoriginal or retracted position, after which the inlet or auxiliary valve9 can follow its normal operation. As the means which effects theopening of said inlet or auxiliary valve is accessible exteriorly of theinjector or casing, it is a very simple matter to correct any defect inthe closing of said valve should the same exist.

What I claim is:

1. An injector having a main or watercontrolling valve provided with atubular stem, an auxiliary valve, a rod extending through said tubularstem and turnably connected with said inlet or auxiliary valve, a"hand-operable member connected with said stem for turning the same, ahand-operable member connected with said rod for moving the same in anendwise direction to cause the operation of said auxiliary or inletvalve, and linkage means jointed to the two hand-operable members forcausing them to turn to gether.

2. In an injector, a casing provided with an internal partitionseparating the same Iiinto chambers, a main or water-controlling valvein one of said chambers, an auxiliary or inlet valve in the otherchamber, means for positively closing said auxiliary or inlet valvetoward said partition, and means for moving the valve towardand from thepartition independently of the closing means therefor.

3. In an injector, a casing having an internal partition dividing thesame into two chambers, a main or water-controlling valve in onechamber, an auxiliary or inlet valve in the other chamber, a springacting against said auxiliary or inlet valve to close the same towardsaid partition, means involving a hand-operable member for operatingsaid auxiliary or inlet valve independently of said spring, saidhand-operable member being accessible exteriorly of the casing, andmeans for operating the main or water-controlling valve.

4. An injector having a main or watercontrolling valve provided with atubular stem, an auxiliary or inlet valve, a spring for closing saidauxiliary or inlet valve, a rod extending through said stem and having ahook provided with a bifurcation, the auxiliary valve having a stemstraddled by said bifurcation and also having shoulders between whichthe bifurcation is located, and a lever connected with said rod formoving the same in an endwise direction to cause the hook to act on oneof said shoulders to open the inlet or auxiliary valve.

5. An injector having a main or watercontrolling valve provided with arotary tubularstem, an auxiliary or inlet valve, an endwise movable rodextending through said stem and connected with said auxiliary valve foroperating the same, a lever connected with said rod to move the same inan endwise direction, a lever fastened to said stem for turning thesame, and a link jointed to the respective levers for causing them toturn together.

6. An injector having a main or watercontrolling valve provided with atubular stem, means for turning the stem to thereby operate said main orwater-controlling valve,

an auxiliary or inlet valve, an endwise movable rod extending throughsaid stem, the rod having a bifurcation, and the auxiliary or inletvalve having a stem straddled by said bifurc ation and also havingcollars against which the bifurcation is adapted to alternately bear,and means for operating said rod in an endwise direction.

7. An injector having a main or water controlling valve provided with arotary tubular stem, an auxiliary or inlet valve, an endwise movable rodextending through said stem and connected with said auxiliary valve, alever connected with said rod for operating the same, a lever on saidstem to turn the same, and an operative connection between the twolevers.

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JAMES MJGAILEY.

Witnesses:

T. F. SoLEs, H. J. McALLIsTER. p

